Alright, let's work through 43561758 times 78689815 step by step
43561758 × 78689815 = 78689815 × (43561758)
+ 78689815 × 8 resulting in 629518520
+ 78689815 × 50 yielding 3934490750
+ 78689815 × 700 giving us 55082870500
+ 78689815 × 1000 producing 78689815000
+ 78689815 × 60000 resulting in 4721388900000
+ 78689815 × 500000 that is equal 39344907500000
+ 78689815 × 3000000 that is equal 236069445000000
+ 78689815 × 40000000 which equals 3147592600000000

= 3427866678094770
